Bulkhead.



G. C. BOHN.

BULKHEAD.

APPLICATION FILED JUNE 22. I914.

Patented Aug. 31, 1915.

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G. C. BOHN.

BULKHEAD.

APPLICATION FILED JUNE-2'2. 19M.

Patented Aug. 31, 1915.

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GEBHAR-D C. BOHN, OF ST. PAUL, MINNESOTA.

BULKHEAD.

Specification of Letters Patent.

Patented Aug. 31, 1915.

Application filed June 22, 1914. Serial No. 846,538.

To all whom it may concern Be it known that I, GEBHARD C. BOHN, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented certain new and useful Improvements in Bulkheads, of which the following is a specification.

My invention relates to improvements in bulkheads for refrigerator cars of that type in which a bulkhead is so supported in the ends of the car that it may be lifted up into horizontally supported position under the car roof, the object of my invention being particularly to provide spring means for assisting in the lifting of the bulkhead.

To this end the invention consists in the construction, combination, and arrangement of parts hereinafter described and claimed.

In the accompanying drawings forming part of this specification, Figure 1 is a vertical longitudinal section of one end of the car embodying my features of invention; Fig. 2 is a horizontal section on line 50-00 of Fig. 1; Fig. 3 is a broken away View of the inner side wall of the car illustrating certain features of my invention; Fig. 4 is a detail view of a spring forming part of my invention; Fig. 5 is a detail of a guide block carried by the spring; and Fig. 6 is a detail view partly in section of locking means forming part of the invention.

In the drawings, 2 represents the floor, 3 the end wall, a the side walls, and 5 the roof of an ordinary refrigerator car. Extending across the ends of the car and having slidable support by means of pivot pins 6, nor mally projecting into the vertical guideways or grooves 7 in the side walls of the car, is the bulkhead or partition A of any desired openwork construction. Extending from the upper ends of the guideways 7 horizontally and preferably downwardly toward the adjacent end wall 3, are guideways or grooves 8. The lower end of the bulkhead when in vertical position normally rests in a groove 9 in a car floor.

10 represents latches of suitable construction supported in the side walls of the car near the roof to engage with and support the lower end of the bulkhead when in raised or horizontal position, as shown in dotted lines in Fig. 1.

For the purpose of cooperating with the bulkhead and assisting in the raising thereof, I provide a pair of springs B, one of said springs being positioned in each of the vertical guideways 7. As shown in Fig. 3, the springs are preferably positioned behind the front rails 11 of the guideways, each spring supporting at its upper end a square head 12 and centrally supporting a square block 13 to serve as guides for the spring. The springs are of such length that when the bulkhead is in vertical position the pins 6 will rest upon the heads of the springs and hold the springs in compressed condition.

For the purpose of holding the partition lowered in the trough 9 against the tension of the springs I provide latches 14: carried by the sides of the bulkhead and adapted to project into openings 15 in the adjacent side walls of the car. lVith the partitions lowered and the latches fitting into the openings 15, the bottom of the partition will stand slightly above the bottom of the trough. This permits the bulkhead being pushed down enough to release the latches 14 when it is desired to raise the bulkhead. When the latches 1a are released from interlocking engagement with the car walls the compressed springs bearing upwardly against the pivot pins 6 will raise the bulkhead nearly to the top of the vertical grooves, as indicated by dotted lines in Fig. 1, the bulkhead being further lifted manually into the horizontal position or interlocking engagement with the latches 10. In lowering the bulkheads they are pushed down against the tension of the springs compressing the same, the lower ends of the bulkheads being forced into the troughs and the latches 1% into locking engagement with the side walls of the car to hold the bulkhead into vertically disposed position. This type of bulkhead being covered by a former Patent No. 956,472, dated April 26, 1910, forms no novel part of the present construction. In use this type of bulkhead being particularly heavy, has proven hard to be lifted manually into horizontally disposed position. The present improved features of construction enable the easy lifting of the bulkhead, keeping it from dropping back in the process of being lifted and increasing the efficiency of this widely used type of bulkhead.

I claim as my invention:

1. In combination with a refrigerator car including an openwork bulkhead bodily movable in both vertical and horizontal directions within the car, cooperating lifting means for said bulkhead including springs arranged in uplifting position with relation to said bulkhead and held compressed by said bulkhead when the same is lowered.

2. In combination with a refrigerator car including an openwork bulkhead bodily movable in both vertical and horizontal directions within the car, cooperating lifting means for said bulkhead including springs arranged in uplifting position with relation to said bulkhead and held compressed by said bulkhead when the same is lowered.

3. In combination with a refrigerator car including a bulkhead movably supported therein through the medium of pivot pins extending outwardly from the sides of the bulkhead into grooves in the sides of the car, lifting means for said bulkhead comprising springs arranged below the pivot pins of said bulkheads and held compressed thereby when the bulkhead is in lowered position.

l. In combination with a refrigerator car including a bulkhead movably supported therein through the medium of pivot pins extending outwardly from the sides of the bulkhead into grooves in the sides of the car, lifting means for said bulkhead comprising springs arranged below the pivot pins of said bulkheads and held compressed thereby when the bulkhead is in lowered position, and means for locking the bulkhead in lowered position.

In testimony whereof I aflix my signature in presence of two witnesses.

GEBHARD G. BOHN.

WVitnesses:

H. S. J orINsoN, H. SWANSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

